They have answered a lot of questions on their itch. io page.
WOW looks like scam, adding extra content only avaliable in Steam verison forcing people who support them on SubscribeStar to pay again. And at the same time scam Steam users from timely updates paywalling them by subscription.
Also the game is grindy af and there is no incest because whole plot based about MC being milf husband's brother. Changing names just makes story to be even more stupid, than it is now

Like incest was definitly planned at some point where mc sometimes calls milf mom, but it's clear plot was butchered to leave no option for typical name change mod because characters dosen't act like they are close at all.
Well, this is what you expect from Texic really. His webcomics had roughly the same level of stupidity in character interactions, great art though.